Prof James Hansen says pace of global heating has been significantly underestimated, though other scientists disagree

Summary

Renowned climate scientist James Hansen warns that limiting global warming to 2°C is no longer possible due to underestimated climate sensitivity and reduced sun-blocking pollution from ships.

His study suggests warming could hit 2°C by 2045, increasing extreme weather and accelerating ice melt. The research challenges IPCC models, arguing for a higher climate sensitivity estimate.

Hansen calls for carbon taxes, nuclear energy, and geoengineering research.

He warns of an Atlantic ocean current collapse within 20-30 years.

  • AA5B@lemmy.worldEnglish
    39·
    19 hours ago

    Wow, wasn’t it just last year when they took the 1.5° target off life support and called it?

    Now the 2° is dead? Are we killing off 2.5° by summer?

    • PaleRider@feddit.ukEnglish
      14·
      17 hours ago

      All of last year, every time they said this month was the hottest on record, I kept saying “So far…”

      • KinglyWeevil@lemmy.dbzer0.comEnglish
        3·
        10 hours ago

        It is currently the beginning of Feb and our normal weather here is a few days of snow, usually a few inches, usually at least one large to shut everything down (like 10+"). Overcast. In the 20s and 30s (F).

        I went skiing on Saturday and have never seen so much literally bare ground outside of the very early or very very late season.

        I went to a protest today. Parked a distance away and walked. It was 68°. It feels like the end of April. We got almost no snow - only like a foot unseasonably early in the middle of November. The wildfire season this year is going to be rough, and the summer will be brutal.